const base64src = (base64data, fun) => {
  const base64 = base64data; //base64格式图片
  const time = new Date().getTime();
  const imgPath = wx.env.USER_DATA_PATH + "/poster" + time + "share" + ".png";
  //如果图片字符串不含要清空的前缀,可以不执行下行代码.
  const imageData = base64.replace(/^data:image\/\w+;base64,/, "");
  const file = wx.getFileSystemManager();
  file.writeFileSync(imgPath, imageData, "base64");
  fun(imgPath);
};

export { base64src };
